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Balancing circuit configurable with threshold voltage

A technology for balancing circuits and threshold voltages, applied in electrical components, adjusting electrical variables, output power conversion devices, etc., can solve problems such as poor tolerance of process deviations, and achieve obvious effects, low cost, and reduced impact

Inactive Publication Date: 2011-08-31
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the existing sub-threshold design has the problem of poor tolerance to process deviation, and it is necessary to reduce the influence of process deviation on the sub-threshold design. The present invention provides a configurable threshold voltage through threshold voltage fluctuations. balanced circuit

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Embodiment Construction

[0017] The purpose of the present invention is to overcome the defects of the prior art, and provide a configurable voltage balance circuit with simple structure and high performance. The threshold voltage balance circuit of the present invention provides body bias for other digital circuit units. By adjusting the body bias Set, to achieve the purpose of threshold voltage balance. In order to reduce the impact of process deviation on circuit performance in sub-threshold design and balance the threshold voltage mismatch of transistors in sub-threshold design, the present invention designs a configurable configurable A voltage balance circuit, which can improve the performance and process robustness of the sub-threshold circuit, thereby improving the yield rate of the sub-threshold design.

[0018] see figure 1 , the configurable threshold voltage balance circuit with simple structure and high performance of the present invention is composed of three parts: a threshold unbalanc...

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Abstract

A balancing circuit configurable with threshold voltage comprises a threshold imbalance detector, a three state buffer and a selection circuit. An output signal Vout of the threshold imbalance detector and an output signal Vbody of the three state buffer are predesigned as Vdd / 2. The Vout is fluctuated as technology and temperature change, the three state buffer detects and amplifies the Vout amplitude, the output signal Vbody provides offset body voltage of a logic gate, and adjustment values are fed back to body ends of a PMOS tube and an NMOS tube of the threshold imbalance detector to make the threshold imbalance detector adjust the PMOS / NMOS tube threshold voltage balance. The invention can relieve threshold voltage imbalance caused by technology deviation and support super wide voltage adjustment ranging from normal power supply voltage to sub-threshold power supply voltage.

Description

technical field [0001] The invention relates to a circuit for reducing the influence of process deviation on sub-threshold circuits in integrated circuit design, especially a configurable threshold voltage balance circuit with simple structure and high performance, which can reduce the influence of process changes on sub-threshold design, and significantly Improve yield of subthreshold designs. Background technique [0002] With the continuous development of integrated circuit design technology and integrated circuit manufacturing process, the ever-increasing demand for portable devices puts forward higher requirements for power consumption reduction design technology. Sub-threshold design is currently a hot topic in ultra-low power design. By reducing the power supply voltage (Vdd) to enter the sub-threshold region of the circuit——Vdd is less than the threshold voltage (Vth), the system can work in the linear region of the circuit, thereby significantly reducing the power c...

Claims

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Application Information

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IPC IPC(8): H02M3/157
Inventor 柏娜吴维奇吕百涛余群龄龚展立
Owner SOUTHEAST UNIV
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